diff --git a/src/AudioTools/AudioCodecs/AudioCodecsBase.h b/src/AudioTools/AudioCodecs/AudioCodecsBase.h index 663da407d..695ec10bd 100644 --- a/src/AudioTools/AudioCodecs/AudioCodecsBase.h +++ b/src/AudioTools/AudioCodecs/AudioCodecsBase.h @@ -2,8 +2,8 @@ #include "AudioConfig.h" #include "AudioLogger.h" -#include "AudioTools/CoreAudio/AudioTypes.h" #include "AudioTools/CoreAudio/AudioBasic/Collections/Vector.h" +#include "AudioTools/CoreAudio/AudioTypes.h" namespace audio_tools { @@ -48,9 +48,7 @@ class AudioDecoder : public AudioWriter, public AudioInfoSource { virtual void setOutput(Print &out_stream) override { p_print = &out_stream; } /// Returns true to indicate that the decoding result is PCM data - virtual bool isResultPCM() { - return true; - } + virtual bool isResultPCM() { return true; } virtual bool begin(AudioInfo info) override { setAudioInfo(info); return begin(); @@ -249,5 +247,4 @@ class StreamingDecoderAdapter : public StreamingDecoder { } }; - -} \ No newline at end of file +} // namespace audio_tools \ No newline at end of file diff --git a/src/AudioTools/CoreAudio/AudioMetaData/MetaDataFilter.h b/src/AudioTools/CoreAudio/AudioMetaData/MetaDataFilter.h index 2c1be5784..1388a3325 100644 --- a/src/AudioTools/CoreAudio/AudioMetaData/MetaDataFilter.h +++ b/src/AudioTools/CoreAudio/AudioMetaData/MetaDataFilter.h @@ -1,5 +1,6 @@ #pragma once #include "AudioLogger.h" +#include "AudioTools/AudioCodecs/AudioCodecsBase.h" #include "AudioTools/CoreAudio/AudioOutput.h" #include "AudioTools/CoreAudio/Buffers.h" @@ -19,9 +20,13 @@ class MetaDataFilter : public AudioOutput { /// Constructor which assigns the decoder MetaDataFilter(Print &out) { setOutput(out); } + /// Constructor which assigns the decoder + MetaDataFilter(AudioWriter &out) { setOutput(out); } /// Defines the decoder to which we write the data void setOutput(Print &out) { p_out = &out; } + /// Defines the decoder to which we write the data + void setOutput(AudioWriter &out) { p_writer = &out; } /// (Re)starts the processing bool begin() override { @@ -35,7 +40,9 @@ class MetaDataFilter : public AudioOutput { TRACEI(); size_t result = len; // prevent npe - if ((p_out == nullptr) || (data == nullptr) || (len == 0)) return 0; + if ((p_out == nullptr && p_writer == nullptr) || (data == nullptr) || + (len == 0)) + return 0; // find tag int meta_len = 0; @@ -48,7 +55,8 @@ class MetaDataFilter : public AudioOutput { // nothing to ignore if (!metadata_range.isDefined()) { - return p_out->write(data, len); + if (p_out) return p_out->write(data, len); + if (p_writer) return p_writer->write(data, len); } // ignore data in metadata range @@ -61,7 +69,10 @@ class MetaDataFilter : public AudioOutput { } // write partial data - if (tmp.available() > 0) p_out->write(tmp.data(), tmp.available()); + if (tmp.available() > 0) { + if (p_out) p_out->write(tmp.data(), tmp.available()); + if (p_writer) p_writer->write(tmp.data(), tmp.available()); + } // reset for next run if (current_pos > metadata_range.to) { @@ -74,6 +85,7 @@ class MetaDataFilter : public AudioOutput { protected: Print *p_out = nullptr; + AudioWriter *p_writer = nullptr; int current_pos = 0; enum MetaType { TAG, TAG_PLUS, ID3 }; int start = 0; @@ -151,4 +163,43 @@ class MetaDataFilter : public AudioOutput { } }; +/*** + * MetaDataFiler applied to the indicated decoder: Class which filters out ID3v1 + * and ID3v2 Metadata and provides only the audio data to the decoder + * @ingroup metadata + * @ingroup codecs + * @author Phil Schatzmann + * @copyright GPLv3 + */ +class MetaDataFilterDecoder : public AudioDecoder { + public: + MetaDataFilterDecoder(AudioDecoder &decoder) { + p_decoder = &decoder; + filter.setOutput(decoder); + } + + bool begin() override { + is_active = true; + filter.begin(); + return AudioDecoder::begin(); + } + + void end() override { + is_active = false; + filter.end(); + AudioDecoder::begin(); + } + + size_t write(const uint8_t *data, size_t len) override { + return filter.write(data, len); + } + + operator bool() override { return p_print != nullptr && is_active; } + + protected: + AudioDecoder *p_decoder = nullptr; + MetaDataFilter filter; + bool is_active = false; +}; + } // namespace audio_tools \ No newline at end of file